FIGURE 5. The transition from proximal to medial fan settings is dominated by compensationally stacked, very broad (high aspect ratio) channels as much as several thousand feet wide and 8-13 m (26-42 ft) thick for both the Skoorsteenberg and Ross Formations. These channelized sand bodies can be subdivided further into distinct channel-axis and channel-margin associations. Highly amalgamated massive sandstones characterize channel-axis deposits. Away from the axis, beds become distinctly less amalgamated and extremely continuous to produce laterally extensive, layered wings at the channel margins (location A: Rehy Cliffs; location B: Loskop) (modified from Sullivan et al., 2000b).